AA 4102 then K4 221 at O'Hare
Denver → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
12:55AA 4102 from Denver at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
21 h 40 apart on the timetable, overnight
K4 221 leaves 21 h 40 after AA 4102 arrives on the timetable: more than half a day, so not a connection we count.